Electronic spreadsheet system and methods for compiling a formula stored in a spreadsheet into native machine code for execution by a floating-point unit upon spreadsheet recalculation

Granted: Nov 28, 1995 Filed: Mar 3, 1994

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.